InvariantCheckLevel 1142 sync/syncable/directory.cc void Directory::SetInvariantCheckLevel(InvariantCheckLevel check_level) {
InvariantCheckLevel  343 sync/syncable/directory.h   void SetInvariantCheckLevel(InvariantCheckLevel check_level);
InvariantCheckLevel  553 sync/syncable/directory.h   InvariantCheckLevel invariant_check_level_;